Shelly Mohan, a housewife and mother of three, makes an irreparable decision and commits a horrific act when Charlie Lynch, a man from her troubled past, contacts her.
Garda detective Jason is assigned a mysterious case. While focusing on a sex worker lead with co-worker Fiona, his wife Shelly fears leaving evidence at the victim's hotel room.
After Lynch's true identity is revealed, a twenty-year-old case tied to Shelly and Charlie with political implications is reopened by DSI Crichett in London.
As the investigation gains momentum in both nations, Fiona becomes wary of Shelly, Jason's partner; the motives behind Shelly's name change begin to surface.
Shelly faces mounting pressure after being identified as the mysterious woman at the crime scene. She contemplates escape, but her love for her children prevails and she decides to stay put.
